Kalabahi weather in September

In September, Kalabahi sees average daytime highs of 30°C and overnight lows near 22°C, with 28 mm of rain across 3.8 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Kalabahi's 1st-clearest and 8th-windiest month. For the whole year in context, see Kalabahi's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
22°
3rd coldest
Rainfall
28 mm
3.8 wet days
Daylight
12 hours
5:37 AM – 5:35 PM
Cloud cover
48%
1st clearest
Wind
4 km/h
8th windiest
Solar energy
6.81 kWh/m²
Travel score
5.5
out of 10

Kalabahi is regency capital town in Indonesia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Kalabahi reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283123
293123
303123

How September really feels in Kalabahi

Once humidity and wind are folded in, September averages 15 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
15
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kalabahi weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°45730.212.43.0
Feb28° / 23°44027.512.33.0
Mar29° / 23°39828.412.13.2
Apr29° / 23°29623.411.83.6
May29° / 23°17520.411.64.1
Jun29° / 22°9515.611.54.8
Jul28° / 21°6113.611.65.3
Aug29° / 21°307.811.75.8
Sep30° / 22°283.8125.5
Oct31° / 23°808.912.24.6
Nov31° / 24°25419.912.43.6
Dec29° / 24°43929.212.52.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16535
26535
36634
46634
56634
66634
76535
86535
96535
106535
116535
126436
136436
146436
156436
166436
176436
186436
196535
206436
216436
226436
236436
246436
256337
266337
276337
286337
296337
306337

Chance of precipitation in September

Any precipitation

Kalabahi gets around 28 mm of rain over 3.8 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 16% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
215
314
414
514
613
713
813
912
1012
1112
1212
1312
1412
1512
1613
1713
1813
1913
2013
2113
2213
2313
2413
2514
2614
2714
2814
2915
3015

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10206812
20206812
30216712
40216712
50216712
60226612
70226612
80226612
91226611
101226512
111226512
121226512
131226512
141226512
151226413
161216513
171216414
181206514
191196515
201186615
211186516
220176617
230166717
240166618
250156718
260146719
270146620
280136621
290126622
300126523

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 5:46 AM to 5:29 AM, and sunset from 5:37 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:465:37
211.85:465:37
311.95:455:37
411.95:455:36
511.95:445:36
611.95:435:36
711.95:435:36
811.95:425:36
911.95:425:36
1011.95:415:36
1111.95:405:36
1211.95:405:35
1311.95:395:35
1411.95:395:35
1511.95:385:35
1612.05:375:35
1712.05:375:35
1812.05:365:35
1912.05:365:34
2012.05:355:34
2112.05:345:34
2212.05:345:34
2312.05:335:34
2412.05:335:34
2512.05:325:34
2612.05:325:33
2712.05:315:33
2812.05:305:33
2912.15:305:33
3012.15:295:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.81 kWh/m².

For context, solar energy here swings from a low near 5.15 kWh/m² to a high of 7.11 kWh/m² in October across the year — September's 6.81 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Kalabahi

In seasonPeak

None of Kalabahi's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Kalabahi sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Kalabahi's monsoon runs November–April, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Kalabahi?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.5
Sightseeing
2nd-best month of the year
7.8
Beach & pool
1st-best month of the year

September is a reasonable time to visit Kalabahi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kalabahi in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Kalabahi sees daytime highs around 30°C and nights near 22°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Kalabahi in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in November at about 30°C and coldest in August near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep28Warm
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Kalabahi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kalabahi peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jul 10UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov14Extreme
Dec12Extreme

Air quality in Kalabahi in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kalabahi is worst in October — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (April, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1919 µg/m³Apr 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar9Good
Apr8Good
May8Good
Jun10Good
Jul9Good
Aug9Good
Sep11Good
Oct20Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Kalabahi?

Kalabahi sits at 8.2°S, 124.5°E, 33 m above sea level, in Indonesia. The nearest listed city is Maubara, 85 km away.

Topography around Kalabahi

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kalabahi.

Within 3 km, the terrain around Kalabahi has significant variations in elevation — a maximum elevation change of 557 m around an average of 106 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,396 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,767 m.

The land around Kalabahi is covered by trees (67%) and water (20%) within 3 km, trees (66%) and water (28%) within 16 km, and water (81%) within 80 km.

3 km
557 m
16 km
1,396 m
80 km
1,767 m
treesgrasslandartificial surfaceswatermangroves
September weather nearby: Maubara 85 km · Liquiçá 97 km · Atambua 106 km · Gleno 113 km · Maliana 114 km · Dili 119 km · Atsabe 123 km · Lewoleba 125 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kalabahi (-8.2151°, 124.5458°, elevation 33 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).